Method and apparatus for proportionally mixing alpha petroleum oil with alpha liquidreagent



W. W. GARY Sept. 19, 1933.

METHOD AND APPARATUS FOR PROPORTIONALLY MIXING A PETROLEUM OIL WITH ALIQUID REAGENT Filed Jan. 6, 1930 0/4 UNDER neassuzs INVENTO l A Z.Feral r2 02?.

Patented Sept. 19, 1933 oN 'rED STATES METHOD AND APPARATUS FOR 'PRoPoR-TIONALLY MIXING A PETROLEUM 011. WITH A LIQUID REAGENT Wright w. Gary,Los Angeles, Calif. Application January'fi, 1930. Serial No. 418,816 4Claims. (01. 196-45) My invention relates to an apparatus forproportionally mixing fluids, such as liquids with liquids and gaseswith liquids, and for accomplishing it with reasonable accuracy.

5 The proper proportioning of oil and acid inthe treatment'of petroleumis important for two reasons, First, when treating in a continuoussystem, if the acid is not uniformly applied, pe'' trollable, forvarying discharge pressures from the pump give varying flow through thecontrol valve.

Even the orifice meter is not an accurate measure of flow, due toforeign matter varying the orifice. This also effects the efiiciency ofa control valve and constant adjustment is necessary and this results inflow fluctuations. I I

I have, invented an apparatus by means of which liquids can be mixedwith liquids, and liquids can be mixed with gases continuouslyandaccurately and the proportions can be controlled as to de 39 siredpercentages without the aid of adirect feed pump. As an example, if anoilis being charged to a treating unit by means of. a pump or bypressure, no direct pump or pressure will be required upon the acid inorder to properly proportion and feed it into the treating unit.-

The principle on which my invention is based may be briefly stated asfollows:

If one of two commodities being proportioned is being charged to theapparatus under pressure through an ejector or Venturi tube, anothercommodity can be forced into the apparatus by the power set up by theejector or Venturi tube, and if the flow of the commodity under pressureis constant, the power of the ejector or Venturi tube is also constant,and the flow of the secondcommodity will be constant provided itsdifferential head with reference to the ejector is constant. .By meansof my invention I am able to'regulate this head and thus to change thedesired percentage of the second commodity.

In order to more fully explain my invention,

I have illustrated a simple outline of apparatus in which the inventionis embodied and which'I will now describe.

5 Figure 1 is a vertical sectional view through an apparatus embodyingmy invention; and Figure 2 shows an example of an operating chart.Referring in detail to the drawing, the acid supply, or the supplyof anyfluid, to be mixed With another liquid or fluid, isfrom a tank orreservoir 5, which can be of anysuitable size and PATENT oFFI Ematerial, depending uponthe fluid used, with a pp y pipe 6, and acontrol valve '7, with op'erating-fioat 8, for maintaining a deflniteorpredetermined level of the fluid in the supply'resei voir 5. 'Saidreservoir is also shownasprovided With an. outside level gauge 9 forindicating the level in inches.

From said reservoir 5 extends a flow pipe 10, j

connectedwith three vertical risers, 11, 12 and 13, each provided withacontrol valve, as 11',

12 and 13', forcontrolling the supply of the fluid with which themixture'is Kto be'made.

These risers connect at theirupper ends with a common pipe14,=connectedr with the receiving tank or reservoir 15. Control valves11?, l2 and 13 are also connected into said risers, as clearly.

illustrated. Said risers arein the form of Ven; turi tubes,'having therestricted passages at '16, 1'7 and 1 8.

Withineach of said risers 11, 12 and 13, dise charge pipes or nozzles19, 20 and 21 are placed, as indicated, connected with the flow pipe 10,

whereby'the fluid to be mixed with the second fluid flows up into thesaid nozzles 19, 2 0 and 21 tothefluid. level of the reservoir 5, asindicated.*-

In theoperationof the apparatus, the level of the fluid in thetank orreservoirfi. is maintained and controlled by the float controlled valve.7 and this level is also maintained in the discharge nozzles, asindicated in 19, which is shown in sec- 7 In the treatment of petroleumwith sulfuric acid, the oil is pumped to the treating unit underpressure, as through the vertical risers 11, 12 or" 13, as may bedesired, one or more at a time, through pipe 14 into the tank 15. Intheshowing made for descriptive purposes, the sulphuric acid is suppliedthrough the nozzles 19,

20 and 21, from the supply reservoir 5, and the level is maintainedaccording to the adjustment of the float valve and float connection,said level being indicated by the line L. The level is indicated ininches on the gauge 9, as before referred to and the predetermined levelin the reservoir 5 regulates or controls the amount of acid or otherfluid taken into and up through the vertical risers by the forced flowof petroleum, or other fluid being forced into the receiving tank 15 If,for example, so many barrels of petroleum are being forced through thesupply pipes or risers 11, 12 and 13, and pipe 14, into said receivingtank 15, per hour, the amount of acid entrained and carried therewithinto said tank 15 will depend upon the levelof the acid. in said Ifalargevclume of petroleum .is being forced through the pipes 11, 12 and13, to the receiving or mixing tank 15, the flow will be uniform, butshould it vary slightly, the power of theejector varies accordingly andthe entraining action also varies, and the amount of acid carried intothe main flow is thereby automatically controlled by reason of theautomatic maintenance of a predetermined level. The arrangement shownfor explanatory purposes is simple and practical and I there is nothingto clog or to'get out of order.

While I have shown a plurality of risers or supply pipes for one fluidunder pressure and these are shown connected in multiple, it will beunder- .stood that other connections and other arrangements can be usedaccording to the requirement and that plural connections can bev madefor the fluid or fluids which are to be mixed proportionally with anygiven fluid being supplied under pressure to the receiving tank. It willalso be understood that any type of ejector, jet pump, Sprengle pump orother arrangement Wherebythe forced flow of one fluid can entrainanother fluid can be used, and that any means for maintaining apredetermined or constant level of fluid to be so entrained can be usedand comes within the scope of my'invention; I do not therefore, limitmyinvention to the showing made, except as I may be limited bythe heretoappended claims.

I claim: I

1. An apparatus for proportionally mixing a petroleum oil with a liquidreagent which includes, a reservoir for the liquid reagent, means formaintaining a predetermined level of said reagent therein, a verticaldischarge nozzle connected with said reservoir and in whichfsaid reagentrises toward the outlet end thereof, and means for maintaining a forcedflow of petroleum oil under pressure in entraining relationship to saidnozzle to cause a'flow of the reagent from the nozzle, whereby aproportional mixing takes place which is automatically controlled andmaintained substantially constant bythe maintained level of the reagentin the reservoir and the quantity flow of the petroleum oil.

2. An apparatus for proportionally mixing a petroleum oil with a liquidreagent which includes, a reservoir for the liquid reagent, means formaintaining a predetermined level of said reagent therein, a verticaldischarge nozzle connected with said reservoir and in which the reagentrises toward the outlet end thereof, a Venturi tube through which thepetroleum oil is forced, the outlet end of the discharge nozzle beingpositioned in said Venturi tube, and means for connecting a supply ofpetroleum oil under pressure to said Venturi tube.

'3. An apparatus for cludes, a reservoir'for the liquid reagent,adjust-1 able means for adjusting the level of the reagent in'thereservoir to any desired positionto adjust the relative proportions ofthe petroleum oil and proportionally mixing petroleum oil and a liquidreagent which inliquid reagent in the mixtureand to automatical- 1ymaintain the reagent at the adjusted level, a vertical discharge nozzleconnected with said reservoir and in which the reagent rises toward theoutlet endthereof, a Venturi tube through which the oil is forced, theoutlet end of the nozzle being positioned in said Venturi tube, andmeans for connecting a supply of the oil under pressure to said Venturitube, whereby the flow of oil through said Venturi tube entrains thereagent from said nozzle proportioned according to the adjusted level ofthe. reagent in the reser-" voir.

4. A method of proportionally mixing oil and a reagent which'comprisesplacing the reagent in a tankin communication with a verticallyextending nozzle, forcing the oil under pressure in entraining relationto said nozzle to' draw said reagent from the nozzle andmix it with theoil,

adjusting the level of the-reagent in the tank W IGHT GARY, l

